DE60317810T2 - Determination of the code transmission range in the circulation power for cellular systems - Google Patents

Determination of the code transmission range in the circulation power for cellular systems

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Publication number
DE60317810T2
DE60317810T2 DE2003617810 DE60317810T DE60317810T2 DE 60317810 T2 DE60317810 T2 DE 60317810T2 DE 2003617810 DE2003617810 DE 2003617810 DE 60317810 T DE60317810 T DE 60317810T DE 60317810 T2 DE60317810 T2 DE 60317810T2
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Prior art keywords
code
based
transmission power
determining
limit
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DE2003617810
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German (de)
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DE60317810D1 (en
Inventor
Guodong Farmingdale ZHANG
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InterDigital Technology Corp
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InterDigital Technology Corp
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Priority to US415938P priority
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Priority to PCT/US2003/031327 priority patent/WO2004032531A2/en
Publication of DE60317810D1 publication Critical patent/DE60317810D1/en
Application granted granted Critical
Publication of DE60317810T2 publication Critical patent/DE60317810T2/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/54Signalisation aspects of the TPC commands, e.g. frame structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/16Deriving transmission power values from another channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367Power values between minimum and maximum limits, e.g. dynamic range

Description

  • Field of the invention
  • These This invention relates generally to cellular networks, and more particularly the determination of code transmit power for use in power control.
  • Background of the invention
  • For a universal Mobile Telecommunication System (UMTS) is available on the downlink a variety of different codes used to transmit a variety of different coded composite transport channels (CCTrCHs). Each CCTrCH becomes independent power controlled. At the receiver of the UE (a RAKE receiver is for Frequency Division Duplex (FDD), which becomes a multiuser detector (MUD) receiver for time division duplex (TDD) used must) Difference between the transmission power of two codes in the same Cell within a certain range to ensure that the receiver works correctly. The maximum allowable difference is called the Dynamic range of the receiver designated. Since the total transmission power (i.e., carrier power) on the downlink is limited, should have a suitable transmission power range for each Code to be determined in order to enable that the power regulation the difference of the code transmission powers as far as possible in the dynamic range.
  • US 2003/0124983 discloses a conventional CDMA power control system.
  • Present is no practical algorithm known to the transmission power range for each Code on the downlink to determine. The consequence of this is that the transmission power of a code be increased from the power control to a very high value can what it is due to the limit for the total transmit power of the Node B for the transmission power of other codes makes it difficult to find connection.
  • It is desirable a method for determining the transmission power range on the Downlink preferably in the form of an algorithm.
  • Summary of the invention
  • The The invention provides a method and an apparatus which one for All operating modes of UNIS systems (including FDD, high chip rate TDD) (HCR) and TDD with low chip rate (LCR)) matching algorithm for determining the transmission power range for each code on the downlink use. In a preferred embodiment, the invention Details of the preferred implementation available. While the following description Terms of downlink power control for CDMA systems as an example, must be noticed be that the Invention for the uplink power control applicable and also usable in cellular systems other than those mentioned above is.
  • Brief description of the drawings
  • One more detailed understanding The invention can be understood from the following description of preferred embodiments which is given by way of example and which are to be obtained with the attached drawings to understand, wherein:
  • 1 schematically illustrates a first embodiment in the form of a flowchart for determining the code transmission power area on the downlink; and
  • 2 schematically illustrates a second embodiment in the form of a flow chart.
  • The following acronyms are used in the present invention:
  • AWGN
    additive white Gaussian noise
    BLER
    Block error rate
    CCTrCH
    coded composite transport channel
    CDMA
    Code division multiple access
    CRNC
    controlling RNC
    DR
    dynamic range
    FDD
    Frequency division duplex
    HCR
    high chip rate
    LCR
    low chip rate
    MUD
    Multi-user detector
    RNC
    Radio network controller
    SIR
    Signal-to-noise ratio
    TDD
    Time division duplex
    UE
    user equipment
    UMTS
    universal mobile telecommunication system
  • Detailed description more preferred embodiments
  • Here hereinafter a method and a device will be described, the algorithms in one of the first and second embodiments for determining the code transmission power for the downlink power control to use in cellular networks. The transmission power range is between the upper limit and the lower limit of the transmission power of a certain code. The method of the present invention determines a suitable transmission power range (in particular the Upper limit) for every code, so that the Transmission power of other codes can be adjusted to within of the dynamic range, if any code is his Upper limit approaches.
  • The solution of two present inventions determines the range of code transmission power using at least some of the following parameters: 1) Number of codes on the downlink (Time window at TDD); 2) range of the SIR target of the code; 3) maximum permissible Dynamic range of the receiver used at the UE (dynamic power range Recipient is the maximum allowable Difference between the transmission power of all codes); 4) middle MUD efficiency factor on the downlink (only for TDD); 5) average orthogonal factor on the downlink (only for FDD); 6) average ratio from intercell to intracell interference.
  • The inventive method allows cellular networks, the dynamic range of code transmission power in the downlink power control to determine. In particular, it is applicable to all modes of UMTS systems (including FDD, HCR TDD and LCR TDD).
  • This in 1 shown method 100 The first embodiment uses the following information to determine the range of code transmission power:
    The number of codes on the downlink (time window at TDD) denoted by N is obtained in step S1;
    the range of the SIR target of the code i: the lower limit SIR uG (i) and the upper limit SIR oG (i) are then obtained (step S2). The range is determined by the CRNC from the BLER request for services and possible propagation conditions. For example, the upper limit is the SIR target which corresponds to the worst case SIR (known in the technical literature as Case 1), and the lower limit is the SIR target which corresponds to the best case (in the technical literature as the AWGN case known); and
    the maximum allowable dynamic range of the receiver used at the UE is DR, the value of which depends on the design of the receiver. Therefore, DR is a design parameter that can be configured by the operator.
  • The code transmission power area is determined as follows. First, among all the codes, the code with the maximum upper limit SIR target, say the code j, is selected (step S3). The upper limit of the transmission power of the code i is denoted TXCode oG (i) and used as a reference. The relationship between the upper limit of the code transmission power of the code i and the code j (the code having the maximum upper limit SIR target) obtained in step S4 is expressed as: TXCode oG (i) = R (i) x TX code oG (j) Equation 1 where R (i), the desired ratio between TXCode oG (i) and TXCode oG (j), is:
    Figure 00050001
  • The sum of the upper limit of the code transmission power is subjected to the maximum node B carrier power limit CATX max (step S5). For system stability purposes, a margin is used to prevent the overall code transmit power from reaching the maximum allowable value. The span, a design parameter, can be configured by the operator as:
    Figure 00050002
  • Therefore, the upper limit of the transmission power of the code i is given by:
    Figure 00050003
  • The lower limit of the code transmit power obtained in step S6 is set to the minimum allowable Node B carrier power. TXCode uG (i) = CATX min Equation 5
  • The code transmission powers are then set to be within the dynamic range (step S7). Whenever the number of codes on the downlink changes, the procedure configures 100 the code transmit power range or reconfigure it, which includes: the radio link setup for a new CCTrCH and the radio link down for an existing CCTrCH. Consequently, the procedure 100 for a real-time service scenario in which the number of codes changes relatively slowly.
  • An in 2 shown second embodiment of a method 200 According to the present invention, the following information for determining the range of the code transmission power uses: 1) number of codes on the downlink (time window in TDD) designated by N; 2) range of the SIR target of the code i: the lower limit SI-R uG (i) and the upper limit SIR oG (i) obtained from the BLER request; 3) maximum allowable dynamic range of the receiver DR used at the UE; 4) average downlink MUD efficiency factor (TDD only) α; 5) average orthogonal factor on the downlink (only for FDD) α; 6) average ratio of intercell to intracell interference η; and 7) maximum load on the downlink load max . This is a design parameter that can be configured by the operator and executed by the call admission control function. These data are obtained in steps S11 and S12.
  • Of the Code transmit power range is then determined as follows: The current one Load on the downlink (Time window for TDD) is calculated (S13). From all codes the code with the maximum upper limit SIR target, say the code j, selected (step S14).
  • The load contributed by each code i is given by:
    Figure 00060001
  • Therefore, the total load is given by:
    Figure 00060002
  • The load on the downlink is controlled by the paging permission control function so as not to exceed the maximum permissible load on the downlink load max . The limit for the sum of the code transmit power upper limits obtained in step S14 is set as proportional to the current load. This means:
    Figure 00070001
  • The upper limit of the transmission power of the code i is TX code oG (i). The relationship between the upper limit of the code transmission power of the code i and the code j (the code having the maximum upper limit SIR target obtained in step S15) is expressed as: TXCode oG (i) = R (i) x TX code oG (j) Equation 11
  • Wherein R (i) is the desired ratio (obtained in step S16) between TXCode oG (i) and TXCode oG (j):
    Figure 00070002
  • Therefore, the upper limit of the transmission power of the code i (obtained in step S17) is given by:
    Figure 00070003
  • Using equation 12 in equations 6-8, the result is:
    Figure 00070004
  • Likewise, the use of Equation 14 in Equation 10 provides:
    Figure 00070005
  • Finally, using 15 in Equation 13 yields:
    Figure 00080001
  • The lower limit of the code transmit power (obtained in step S18) is set to the minimum allowable carrier power of the Node B as: TXCode uG (i) = CATX min Equation 17
  • The Code transmission powers are then set to be within of the dynamic range (step S19).
  • This in 2 shown method 200 does not necessarily need to configure or reconfigure the code transmit power range as the number of codes on the downlink changes. As shown in Equation 16, the transmission power range for one code is limited by its SIR upper limit and the maximum SIR upper limit for downlink codes (TDD time slots). So long For example, if the maximum SIR upper bound for downlink codes (time window for TDD) does not change, the value of R (i) * SIR oG (j), the range of code transmission power, will not change. As a result, the frequency of reconfiguration of the code transmission power area is much smaller than the frequency with which the number of codes changes. Therefore, this algorithm is also suitable for a non-real-time service scenario in which the number of codes changes rapidly. It is also suitable for a real-time service scenario.
  • The flow chart of 1 shows the preferred sequence of operations for implementing the first algorithm. First, the number of codes on the downlink and the maximum allowable dynamic range are obtained, followed by steps that act on the data obtained to achieve the desired result. However, the steps may be changed in sequence without departing from the scope of the invention.
  • The flow chart of 2 shows the preferred sequence of operations for implementing the second algorithm. The method first obtains the number of downlink codes, the maximum allowable dynamic range, the MUD efficiency factor (applied only to TDD), the orthogonal factor (applied only to FDD), the average ratio of intercell to intracell interference, and maximum allowable load on the downlink, followed by operations on that data to achieve the desired result. Here, too, the steps may be changed in sequence without departing from the scope of the invention.
  • Even though the above description on FDD and TDD systems as examples Refers, the invention is for the downlink power control also applicable to other types of communication systems.

Claims (13)

  1. Procedure ( 100 ; 200 ) for determining code transmission power, comprising: a) obtaining (S1; S11) a number of codes on a downlink and a maximum allowable dynamic range of a receiver; b) determining (S2; S12) a lower bound and an upper bound for the signal to noise ratio (SIR) target of each code based on a block error rate request (BLER request); c) determining (S3, S15) a code with maximum upper limit SIR target and introducing its upper limit for the transmission power as a reference; d) determining (S4; S16) a desired relative ratio between the upper transmit power limit of each code and the reference based on the maximum allowable dynamic range; e) determining (S5; S17) an upper transmit power limit of each code based on a constraint on the sum of the upper limit for the code transmit power and based on the desired relative ratio; and f) determining (S6; S18) a lower transmit power limit for each code to a minimum Node B carrier power.
  2. The method of claim 1, wherein the upper transmit power limit based on the constraint of maximum Node B carrier power is determined using a margin to prevent the overall code transmission power the maximum Node B carrier power reached.
  3. The method of claim 1, wherein step (b) also selecting an SIR target that corresponds to a worst-case SIR, as the upper limit.
  4. The method of claim 1, wherein step (b) also selecting an SIR target, which corresponds to a SIR in a most favorable case, as the lower limit.
  5. Method according to one of the preceding claims, which the step of adapting (S7; S19) the code transmission power such that they within the permissible Dynamic range is.
  6. The method of claim 1, further comprising: To calculate a burden contributed by each code; Summing the load, to get a current total load; and Determine a Border for the sum of the upper limit of the code transmission power based on the current total load.
  7. The method of claim 6, wherein the of each code contributed load based on the ratio of intercell to intracell interference is calculated.
  8. The method of claim 7, wherein the load is also based on an average multi-user detector efficiency factor on the downlink for a Time division duplex communication system is calculated.
  9. The method of claim 7, wherein the load is also based on a middle orthogonal factor on the downlink for a Frequency division duplex communication system is calculated.
  10. Device for determining the code transmission power, which has: means for obtaining a number of Codes on a downlink and a maximum allowable dynamic range a recipient; a Device for determining a lower limit and an upper one Border for the signal-to-noise ratio target (SIR target) of each code based on a block error rate request (BLER requirement); a means for determining a code with maximum upper limit SIR target and introducing its upper limit for transmission power as a reference; a device for determining a desired relative ratio between the upper transmit power limit of each code and the reference based on the maximum allowable Dynamic range; a device for determining an upper one Transmission power limit of each code based on a constraint for the Sum of the upper limit for the code transmit power and based on the desired relative ratio; and a Means for setting a lower transmit power limit for each Code to a minimum Node B carrier power.
  11. Apparatus according to claim 10, further comprising means for determining the upper transmission power limit based on Constraint of maximum Node B carrier power using of a margin to prevent the total code transmission power reaches the maximum Node B carrier power.
  12. Apparatus according to claim 10 or 11, further has means for adjusting the code transmission power, so that she within the permissible Dynamic range is.
  13. The device of claim 10, further comprising: a Means for calculating a load contributed by each code; a Device for summing the load to a current total load to obtain; and a means for determining a limit for the Sum of the upper limit of the code transmission power based on the current total load.
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8422434B2 (en) * 2003-02-18 2013-04-16 Qualcomm Incorporated Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems
KR100547771B1 (en) * 2003-03-13 2006-01-31 삼성전자주식회사 Power control method of a wireless access node in a wireless LAN system
US7443821B2 (en) * 2004-01-08 2008-10-28 Interdigital Technology Corporation Method for clear channel assessment optimization in a wireless local area network
DE102004054626B4 (en) * 2004-11-11 2007-05-24 Siemens Ag Method for multicode transmission by a subscriber station
KR100662370B1 (en) 2004-11-30 2007-01-02 엘지전자 주식회사 method for controlling power
CN100557997C (en) * 2005-12-23 2009-11-04 华为技术有限公司 Method and its system for controlling soft switching link power in CDMA network
JP4769657B2 (en) * 2006-07-28 2011-09-07 京セラ株式会社 Wireless communication method and wireless communication terminal
JP4829049B2 (en) * 2006-08-30 2011-11-30 京セラ株式会社 Wireless communication method and wireless base station
US8150447B2 (en) * 2006-12-21 2012-04-03 Telefonaktiebolaget Lm Ericsson (Publ) Multi mode outer loop power control in a wireless network
US9392555B2 (en) * 2011-10-06 2016-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Power controller, method, computer program and computer program product for controlling transmission power
US9307505B2 (en) 2013-03-12 2016-04-05 Blackberry Limited System and method for adjusting a power transmission level for a communication device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669066A (en) * 1993-05-14 1997-09-16 Telefonaktiebolaget Lm Ericsson Dynamic control of transmitting power at a transmitter and attenuation at a receiver
US6049535A (en) * 1996-06-27 2000-04-11 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
US5774785A (en) * 1996-06-20 1998-06-30 Telefonaktiebolaget Lm Ericsson Adaptive quality adjustment
CA2424556C (en) * 1997-04-17 2009-11-24 Ntt Mobile Communications Network Inc. Base station apparatus of mobile communication system
US6708041B1 (en) * 1997-12-15 2004-03-16 Telefonaktiebolaget Lm (Publ) Base station transmit power control in a CDMA cellular telephone system
US6690652B1 (en) * 1998-10-26 2004-02-10 International Business Machines Corporation Adaptive power control in wideband CDMA cellular systems (WCDMA) and methods of operation
US6421327B1 (en) * 1999-06-28 2002-07-16 Qualcomm Incorporated Method and apparatus for controlling transmission energy in a communication system employing orthogonal transmit diversity
US6397368B1 (en) * 1999-12-06 2002-05-28 Intellon Corporation Forward error correction with channel adaptation
JP2001267939A (en) * 2000-03-21 2001-09-28 Matsushita Electric Ind Co Ltd Transmitter
FR2817094B1 (en) * 2000-11-17 2003-02-07 Cit Alcatel Method for the emission power control in a mobile radio system
EP1353456B1 (en) * 2001-01-17 2016-04-20 Fujitsu Limited Outer loop power control device and method
US6961388B2 (en) * 2001-02-01 2005-11-01 Qualcomm, Incorporated Coding scheme for a wireless communication system
JP4016647B2 (en) * 2001-05-17 2007-12-05 日本電気株式会社 Mobile communication system, base station, mobile station, threshold setting method used therefor, and program thereof
US6751444B1 (en) * 2001-07-02 2004-06-15 Broadstorm Telecommunications, Inc. Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems
US6647273B2 (en) * 2001-12-28 2003-11-11 Nokia Corporation Method and apparatus for reducing power consumption in transceivers in wireless communications systems having a power control loop
US7133354B2 (en) * 2002-08-26 2006-11-07 Qualcomm Incorporated Synchronization techniques for a wireless system
US7706824B2 (en) * 2002-09-27 2010-04-27 Telefonaktiebolaget L M Ericsson (Publ) Requesting and controlling access in a wireless communications network
US7239885B2 (en) * 2003-11-05 2007-07-03 Interdigital Technology Corporation Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel
US20050272457A1 (en) * 2004-06-07 2005-12-08 Nokia Corporation Handling transmissions via a radio link

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EP1550237A2 (en) 2005-07-06
TW200514452A (en) 2005-04-16
NO20052148L (en) 2005-06-28
MXPA05003544A (en) 2005-06-03
TW200412812A (en) 2004-07-16
ES2297240T3 (en) 2008-05-01
CA2501117A1 (en) 2004-04-15
EP1550237A4 (en) 2006-03-01
TW200733597A (en) 2007-09-01
WO2004032531A3 (en) 2004-09-30
KR100638702B1 (en) 2006-10-31
NO20052148D0 (en) 2005-05-02
JP2006502620A (en) 2006-01-19
KR20050099638A (en) 2005-10-14
AU2003283996A1 (en) 2004-04-23
CN1703845A (en) 2005-11-30
TWI240588B (en) 2005-09-21
US20040066795A1 (en) 2004-04-08
DE60317810D1 (en) 2008-01-10
KR20050059236A (en) 2005-06-17

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